B29L31/56

Plastic cap and method for manufacturing same

A plastic cap, which is a highly producible one-piece type cap when molded, but becomes a two-piece type cap excellent in sealability and openability when used, and enables a small-diameter pouring opening to be formed, is provided. The plastic cap comprises: a cap body which is composed of a top plate section and a skirt section, has a pouring nozzle formed on an outer surface of the top plate section so as to surround an opening-scheduled portion, and is fitted and fixed to a container mouth; and a top lid composed of a top face, and a circumferential wall suspending from an outer peripheral edge of the top face. The top lid has, formed therein, a protrusion protruding downward from an inner surface of the top face and having an engaging portion on an outer surface thereof. The cap body has an inner plug formed therein. The inner plug is composed of an annular sidewall having an outer diameter enabling the annular sidewall to intimately contact an inner surface of the pouring nozzle; and a bottom formed at a lower part of the annular sidewall. The inner plug is formed integrally with the cap body via a breakable weakened portion at a position below a seal portion of the pouring nozzle having an inner diameter enabling the seal portion to intimately contact the inner plug. On an inner surface of the annular sidewall, an engaged portion vertically engageable with the engaging portion of the protrusion is formed.

Thermally laminated tab liner
11787153 · 2023-10-17 · ·

Liner having an induction heat sealable layer for sealing to a rim of a container, and a pull tab for ease of removal of the liner from the container rim. An insert is disposed between multilayer upper and lower components, has a heat bondable polyolefin layer that is thermally laminated to polyolefin layers of the upper and lower components, forming a pull tab between the integrated polyolefin layers. The resulting composite resists delamination and can be formed in a single thermal lamination step, avoiding the multiple lamination steps, associated high equipment costs, and complex layer constructions of the prior art.

Closure

A closure is configured to mount on a container to close an open mouth formed in the container. The closure includes a lid and an outer layer coupled to the lid.

Multimodal polyethylene composition

A bimodal polyethylene composition, products made therefrom, methods of making and using same, and articles, including bottle caps and closures, containing same.

Cap, mold and manufacturing method of cap
11905073 · 2024-02-20 · ·

A cap comprises a cap body including a top plate portion and a skirt portion integrally provided with the top plate portion through a corner portion and screwed to a mouth portion of a can container, and a disk-shaped sealing member including a sliding layer which is provided separately from the cap body to face the top plate portion, includes a protrusion portion formed on an outer peripheral side of a portion opposed to the mouth portion when the cap body is screwed with the can container and gradually decreasing in thickness toward an outer peripheral edge, and slides on the top plate portion and a sealing layer which is integrally provided with the sliding layer and seals the mouth portion.

Manufacturing a fluid permeable heater assembly with cap

A method for manufacturing a fluid permeable heater assembly includes providing a heating element, and over-molding a cap on edge areas of one side of the heating element. The cap includes a hollow body having a first cap opening and a second cap opening. The first cap opening is opposite to the second cap opening, and the heating element is mounted on the cap such that the heating element extends across the first cap opening.

Single anchor closure
11975891 · 2024-05-07 ·

A closure includes a closure portion defining a closure top wall and a closure side wall extending from closure top wall. The closure portion is configured to be removed from a finish portion of the container by rotatably disengaging from threads of the finish portion. A tamper evidence band configured to remain engaged with the finish portion when the closure portion is removed from the finish portion. A multiplicity of thin connections attaching the tamper evidence band to the closure portion. The thin connections configured to break apart when the closure portion is removed from the container. An anchor extending from the closure portion to the tamper evidence band. The anchor configured to keep the closure portion attached to the tamper evidence band when the closure portion is removed from the container.

Overmolded seal member
12024347 · 2024-07-02 · ·

A seal member is provided that may prevent fluids from leaking from a drinking bottle, such as a reusable water bottle. The seal member may be overmolded into a lid of the bottle such that the seal chemically and mechanically bonds to the lid. Overmolding the seal member eliminates gaps that could form between the seal and the lid, thus enhancing the cleanability of the seal member and the lid.

Method of manufacturing a can lid composed of a composite material
12005613 · 2024-06-11 · ·

A method of manufacturing a can lid composed of a composite material comprising at least one sheet metal part, in particular an aluminum part or a tin plate part, and at least one plastic part, in particular composed of polypropylene or polyethylene terephthalate, wherein the plastic material and the sheet metal part are joined together by pressing together and by inductive heating to effect a stable connection with an effort and a manufacturing time that are as small as possible.

Polypropylene sheets and articles

A sheet of polymeric material is made using an extruding process and articles are formed from the sheet of polymeric material. The sheet of polymeric material and the articles comprise one or more polypropylene resins. In some embodiments, the sheet of polymeric material and the articles formed form the sheet of polymeric material are transparent.